Featured Articles
Changes in Brain Amine Concentrations Associated with Postembryonic Developrnent in the Solpugid, Eremobates palpisetulosus Fichter (Solpugida: Eremobatidae)
Comparison of Physical Properties of Three Silks from Nephila clavipes and Araneus gemmoides
Factors Affecting the Diameters of Axial Fibers in Cribellar Threads of the Spider Family Uloboridae
Seta-Spigot Homology and Silk Production in First Instar Antrodiaetus unicolor Spiderlings (Araneae: Antrodiaetidae)
Field Observations on the Population Structure of Three Ctenid Spiders (Cupiennius, Araneae, Ctenidae)
Contests over Prey by Group-Living Pholcids (Holocnemus pluchei)
Tarsal Scopula Division in Theraphosidae (Araneae, Theraphosidae): Its Systematic Significance
On the Spider Genus Rhoicinus (Araneae, Trechaleidae) in a Central Amazonian Inundation Forest
On Four Species of Pseudoscorpions from California Described by E. Simon in 1878 (Pseudoscorpionida: Neobisiidae, Chernetidae, Cheliferidae)
Linothele cavicola, A New Diplurine Spider (Araneae, Dipluridae) from Caves in Ecuador
Research Notes
Spermophore Morphology Reveals a New Synapomorphy of Oecobius and Uroctea (Araneae, Oecobiidae)
Spider Habitat Selection: An Experimental Field Test of the Role of Substrate Diameter
Supplementary Notes on the Ground Spider Family Cithaeronidae (Araneae, Gnaphosoidea)
A Case of Heterospecific Mating in Wolf Spiders (Araneae, Lycosidae)